Acetylene-gas generator.



No. 815,745. PATENTEDMAR. 20, 1906.

I B. M. ROSENBLUTH.

AOETYLBNE GAS GENERATOR.

APPLICATION FILED NOV-11, 1901.

3 SHEETS-SHEET 2 WlTNESSES: INVENTOR:

APPLICATION TILED NOV, 11, 1901.

3 SHEETS-SHEBT 3,

-I.NVENTOR:'

. .WITNESSESL mw/mmwmsma;

I 1 'UNITED STATES PATENT orrron.

' To all whom itmayconcern:

EDWIN M. ROSENBLUTH, OF PHILADELPHIA, PENNSYLVANIA.

' ACETYLENE-S-GIASGENERATOR,

Specification of Letters Patent.

Patented March 20, 1906.

Application filed November 11, 1901. Serial No- 81,814.

Be it known that I,E1)w1 M.RosnNBLUTH, of Philadelphia, in the State ofPennsylvania,

' have invented certain new and useful Improvements in Acetylene-GasGenerators,

, whereof the following is a specification, reference being had to theaccompanying drawings.

My present improvements maybe advan-,

tageously employed in vehicle-lamps, being particularly applicable togenerators which are subjected tovibration during their operation and ofthe class wherein the supply of water gravitates to the supply ofcarbid.

It is the object of my invention to provide a generator wherein a chargeof carbid may be retained, so that gas may be generated therefromintermittently, the resumption of gas generation being instantaneousregardless of the extent of intermission of o eration and even when thecharge of carbi is partially decomposed.

My invention comprises awater-condriit and a controlling-valve for thesame arrangedto distribute a predetermined uantity of water over a largeareaof the car id-chamber ad- 1 jacent to the wall thereof, wherebyinstant,

contact ofthe waterwiththe carbid is attained, and the externalatmosphere is utilized in maintaining the water at a low temperatureuntil it is in actual contact with the v carbid.

" My invention also comprehends means whereby the carbid isat all timesexcluded from the water-conduit and valve regardless of the vibration ofthe generator and the various novel features of construction andarrangement hereinafter more definitely specified and claimed, wherebythe manufacture and operation of the generator is facilitated.

In the accompanying drawings, Figure I is a vertical sectional view of agas-generating lamp conveniently embodying my improvements. Fig. II is aplan view of the Watercolumn shown in Fig. I. Fig. III is a plan view'ofthe wick shown in Fig. I. Fig. IV is a plan view of a modified form ofWater-column. Fig. V is a vertical sectional view taken on the line V Vin Figs. I and VII. Fig.

VI is a detailed view showing means for retaining the water-valve insition. Fig. VII is a plan view of the lamp shown in Fig. I. Fig. VIIIis a plan view of the carbid-chamber lid shown in Fig. I. Fig.

predetermined po- 1 IX is a vertical sectional view of a modified formof a gas-generating lamp.

Referring to Fig. I, the carbid-chamber 1 is provided with the lid 2,upon which is fixed the water-chamber 3. Said carbid-chamber 1 isprovided with the annular flange 4 to retain the gasket 5, which iscompressed to seal the joint between the carbid-chamber and its lid'2 bythe engagement of the screw-thread 6 of the carbid-chamber with thescrew-thread 7 of said lid.

livered to theinlet-tu e 10, trally through the lid 2. Sai tube 10 isprovidedwith' a flange 11, which retains the gasket 1.2 in position toseal the top of the detached water-column 13, whose lower extremity isprovided with the annular flange 1 4, which extends adjacent. to thebottom wall of the floor 15 ofthe chamber 1. As shownin Fi II, saidflange 14 is provided with thera ial water-feeding ducts 16 and theperforations 17 intermediate thereof, the arrangement being such thatsaid casing 8, inlet-tube 10, water-column 13, and foraminous floor 14form a conduit through which the water su' plied from the chamber 3 isdistributed rad fally outward at the bottom of said water-columnadjacent to the bottom wall or floor of the carbid-chamber 1 and is thuscaused to instantaneously reach a large area of the mass of carbid 19,which rests upon said flange 14. I find that the comminution anddistribution of the water supplied at the bottom ofthe carbid-chamber 1sfacilitated by interposing the wick 21 between the flange 14 and thebottom wall 15'of the carbid-chamber, which wick is conveniently formedof a disk of textile fabric 22, saturated with aninvolatile liquid, suchas glycerin, applied thereto in aqueous solution and subsequently coatedwith a powder of inert matter, such'as carbid-ash 23. The flow ofaccurately controlled as-follows: Said valvethrough' the port 25,provided with the automatic check-valve 26, which is normally openedinwardly by the water in the chamber 3 but is closed when the backres'sure'of gas within the enerator exceeds t e water-pressure in saichamber.

water through said conduit to the carb'id is casing 8 receives waterfrom the chamber 3;

4 I -Within the water-chamber 3 is fixed the valve-casing 8, throu hwhich water is derojecting cen- The rate of delivery of the water 28from 1 o I may be adjustably predetermined by the set V of the valve 29with respect to its seat 30 in the valve-casing 8. Said casing isprovided with the stuffing-box 31, secured thereto bythe screw-thread 32and comprising the screw-thread 33, engaged with the screwthread 34 uponthe valve-stem 35. The smoothly cylindrical outer extremity of saidvalve-stem extends through the cap 36, which is in screw-threadedengagement with the stufiing-box 31, as indicated at 37, and inclosesthe packing 38 to seal said stem. The stem 35 is provided with theoperatinghead 40, whose peripheral notches 41 are adapted to be engagedby the free extremity of the spring-detent 43, Whose opposite ex tremity44 is secured in fixed relation with the wall of the chamber 3 by beingclamped betweenthe valve-casing 8 and said stuflingbox 31.

The arrangement above described is such that when the head 40 is in theposition shown in Fig. VI the water-conduit is closed; but rotation ofsaid head in the direction of the arrow marked upon it withdraws thevalve 29 from its seat 30, and said head is retained in any desiredrotary position by the engagement of the detent-spring 43 with anyselected notch 41 in the head. Said head 40 is calibrated in the primaryassembly of the parts to assume the position shown in Fig. VI when thevalve 29 is closed as follows: The stem 35 being provided with theshoulder 46 (which may be of one piece therewith, but for convenience ofmanufacture is formed of a separate piece of metal riveted thereon) andthe cylindrical stud 47, projecting in axial alinement with said stem,in the primary assembling of the parts said stem is rotated until thevalve 29 is closed. Then the separate head 40 is fitted upon the stud 47in the position indicated in Fig. VI and soldered to said shoulder 46.The aforesaid method of construction is advantageous in that itminimizes the amount of labor required in assembling the parts andinsures uniformity in the production of the generators.

I find that the generation of gas is facilitated if the charge of carbid19 is compressed in intimate contact with the fora-minous flange 14, andtherefore I provide the diaphragm 50, whose spring 51 compresses it uponthe carbid. Said spring abuts against the lid 2 and is graduallycompressed as the carbid expands during decomposition and raises saiddiaphragm. The generated gas rising through the mass 19 to the top ofthe chamber 1 and escaping therefrom through the gas-conduit 52 andburner 53 may be consumed in the flame 54.

The various parts of the generator are constructed and arranged with aView to minimizing the amount of time and labor required to assemblethem as follows: The burner 53 is cemented in the ferrule 55, and thelatter being tapered to fit the socket 56 is removably secured thereinby friction. The neck 59 of said socket projects through the top wall ofthe water-chamber 3, surrounded by the neck 57, extended from said wall.The upper extremity of the gas-conduit 52 being fitted to thesocket-neck 59, both said socket 56 and conduit 52 are secured to thewall of the chamber 3 by solder 58 at a single operation. Then thewater-inlet provided with the screw-plug 60 is secured in the uppersection of the chamber 3 by the solder 61.

As shown in Fig. VIII, the top wall or lid 2 of the carbid-chamber 3comprises the central aperture 62 and the eccentric aperture 63 torespectively receive the necks 64 and 65, extended from the bottom wallof the waterchamber, and radially-extending bosses 66, struck up fromthe metal forming said lid and perforated at 67 to receive the rivets68, by which said lid is secured to the lower section of thewater-chamber 3, with an airspace between said lid and said chamber surrounding said necks and limited by the extent of said bosses.

The water-inlet tube 10 being fitted in the neck 64, extended from thelower wall of the chamber 3, the valve-casing 8 is entered upside downthrough the side wall of said chamber 3. The port 25 is solderedtherein, and said casing 8 being turned to the position shown in Fig. Vis secured to the inlet-tube 10 by the solder 69 and to the side wall ofsaid chamber by the solder 70. Then the lower end of the gas-conduit 52being entered. through the bottom wall of the chamber 3, surrounded bythe neck 65, the upper and lower sections of said chamber 3 are joinedby the solder 71. Then the inlet-tube 10 and neck 64 are secured to thelid 2 by the single solder joint 72, and the conduit 52 and neck aresecured to the lid 2 by the single solder joint 73.

It is to be noted from the foregoing description that the assembly ofthe various parts of the generator is facilitated by providin thevarious openings in the waterchamber 3 with necks which register withthe other parts which are to be permanently secured thereto and thatsuch construction in each instance permits three pieces to be securedtogether by a single solder joint, thus effecting considerable economyin the time and labor required to manufacture the generator. Moreover,it being desired to maintain the water in the chamber 3 at as low atemperature as is possible and at the same time to rigidly connect itwith the top wall or lid 2 of the carbid-chamber, which is heated by thedecomposition of the carbid, a space is afforded between said chamberand said lid through which air may be drafted to cool the same byproviding said lid with the intecise arrangement or; construction ofwith a water-inlet and described, the water interposition of saidAlthough If prefer to employ the" wick 21:

between the: foraminous flange 14 and the floor 15- of thecarbid-chamber 1 as; above may be distributed through: said foraminousflange without the wick, as shown in- Fig; IX, which also illustratesthe embodiment of my improvements in a table-lamp compris ing thebase-casing 7-5, in which the carbidchamber issupported'by its flange4-, surrounded by water 716-, which serves to: 0001- said chamber. i V gI do not desire-tolimitmyself to the premy improvements which I haveherein set forth; as it is obvious that various modifications may bemade therein without 4 departing from the essential featuresofmyinvention.

1. In an acetylene-gas generatorgthe combination with a carbidchamberprovided agas-out-let; of a water-chamber provided with a water-outletin its wall surrounded by a neck, in integral relation with said wall; agas-conduit extending through said water-chamber and surrounded by aneck extended from, the wall thereof; said water-chamber necks being respectively entered in said water-inlet and gas-outlet inthecarbid-chamber wall; bosses struck up from the metal forming the wall ofsaid carbid-chamber; and means whereby.

said water-chamber is fixed to saidcarbidchamber, upon said bosses,withan air-space surrounding said necks and limited by the extent of saidbosses, substantially asset forth.

2. In an acetylene-gas generator, the combination with a carbid-chamber;of a waterchamber above said carbid-chamber a waterinlet tube extendingfrom said water-chamber, within said carbid-chamber; a watercolumn insaid carbid-charnbenin registry with said tube; and a water-feeder'atthe bottom of said column, consisting of an annular flange extendingadjacent to the bottom of said carbid-chamber and comprisin a series ofradial ducts, substantially as set orth.

3. In an acetylene-gas generator, the Q0111",

bination with a carbid-chamber; of a waterchamber above saidcarbid-chamb er a waterinlet tube extendingfrom said water-chambertosaid carbid-chamber; a water-column in said carbid-charnber, in registrywith said tube; and a foraminous flange secured to the bottom of saidcolumn, extending radially,

adjacent to the floor of the carbid-chamber, and comprising a series ofradial ducts, substantially as set forth. I v 4. In an acetylene-gasgenerator, the combination with a carbid-chamber; of a water- .withinsaid carbidchamber; an

bid-chamber lid,

chamb e1; abovesaidc'ar l idmhamben;lawater inlet tubedepending-jfromesaidz water-chainben tosaid eanbidi-chamber'; a:waterecolumn separable: from said! carbidichamber, but mounted withinsaid! with saidtube-; .a flangeatthebottomwf said chamber, in registrycolumn extending; radially, adjacent to the floor of thecarbid-chamber;-and, a wick be" tweeni said: foraminous flangeand thefioor of V the carbid-chamber, substantially as set forth;

5'. In: an! acetylene g'as generator, the com=binationiwithia-carbidechamber; ofa'rernovable-lidrfor saidz chamber; aseparable watercoluinn within said! carbid chamber; a! water-inlet tubein'said lid, arranged to seat on the to 10f said water-column; and a:forarninous ange secured:tothe-bottomrof said wa.' ter-column= andextending radially, adjacent to the floor of the'carbid -chamber,substanti'ally assetfforth;

- 6; I -n=anacetylene gas generator, the combination. with acarbid-chamb er of. a removable lid for said chamber; a:water-chamberfixed uponsaid? lids; a separable: watercolumnsaidcarbidecharnber anzannulan flange extendingradially from! thebottom-of saidicolumn ,,ad1acent to thejfl'oor of said; car

bid-chamber and, a water-inlet tube extending from said water-chamberthrough said carbid-chamber lid, arranged to seat on the top of saidwater-column, substantially as set forth. p

7. In an acetylene-gas generator, the com bination with acarbid-chamber; of a removable lid for said chamber; a water-chamberfixed upon said lid; a detached water-column v annular flange extendingradially from the bottom of said column, adjacent to the floor ofsaidcarbid-chamber; a water-inlet tube, extending fromsaid water-chamberthrough said carent packing-ring to engage the top of said water-column,substantially as set forth.

8. In an acetylene-gas generator, the combination with a carbid-chamberand a waterchamber, formed of sheet metal; of necks extending from thewall of one of said chambers in integral relation therewith, and inregistry with openings in the other of said chambers; a water-inlet tubeseated in one of said necks; a gas-conduit seated in the other of saidnecks and extending through said water-chamber; and means to retain saidtwo chambers in fixed relation, with an air-space between themsurrounding. said necks, substantially as set forth, r I

9. In an acetylene-gas generator, the combination with a carbid-chamberand a waterchamber formed of sheet metal; of necks extending from thewall of one of said chambers in integral relation therewith, and inregistry with openings in the other of said chambers; awater inlet tubeseated in one of said necks; a gas-conduit seated in the other of rooand provided with a resili- IIO said necks and extending through saidwaterchamber; bosses struck up from the metal forming the wall of one ofsaid chambers;

and means to retain said two chambers in fixed relation with anair-space between them, surrounding said necks and limited by providedwith integral radial bosses and two apertures; of a water-chamber abovesaid carbid chamber secured to said bosses, whereby an air-space is leftbetween said chambers; the bottom wall of said waterchamber beingprovided with two apertures surrounded by integral flanges enteredthrough a ertures in the carbid-chamber, substantia y as set froth.

12. In an acetylene-gas generator, the combination with a casingarranged to contain carbid; of a plate at one end of said casingprovided with radial channels; means arranged to cover the normally opensides of said channels when in operative position; and, means to supplywater in concentric relation with said channels, substantially as setforth.

13. In an acetylene-gas generator, the combination with a casingarranged to contain carbid; of a plate at one end of said. casingprovided with radial channels; a porous pad arranged to cover thenormally open sides of said channels when in operative position; and,means to supply water in concentric relation with said channels,substantially as set forth.

In testimony whereof I have hereunto signed my name, at Philadelphia,Pennsyl- Vania, this 7th day of November, 1901.

- EDWIN M. ROSENBLUTH.

Witnesses:

ARTHUR E. PAIGE, CLIFTON O. HALLowELL.

